Chapter 24
In order to answer the questions below, you will need to read the article assigned and refer to your textbook for further information.
Assigned Article;
http://pubs.acs.org/cen
Chemical and Engineering News, September 14, 1998, Page 10, Lead in Peat Bog tells Historic Tales , written by Maureen Rouhi.
1. What was the goal of the study led by Shotyk?
2. What information can be obtained from studying preanthropogenic levels of atmospheric lead and the ratio of 206Pb to 207Pb?
3. The radioactive decay series of 238U, 235U and 232Th produce the three stable isotopes of lead, 206Pb, 207Pb and 208Pb, respectively. Write out the three net nuclear reactions for these series using only alpha particles and beta particles as the products besides the appropriate lead isotope.
4. A meteorite sample was found to contain 7.0 lbs 238U and 3.7 lbs 206Pb. Determine the age of the meteorite.
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